CorelDraw (.cdr) We support CorelDraw (*.cdr) versions 5 through 13 (or ‘X3’). If you are sending a Corel file, be sure to include font files or convert all text to curves (select text and press CTRL+Q) prior to saving. Adobe Illustrator (.ai) We accept Illustrator (*.ai) files version CS5 and lower. If you are sending an Illustrator file, be sure to include font files or create outlines from all text (select text and press CTRL+SHIFT+O) prior to saving. JPEG or JPG (.jpg) JPEG (Joint Photographic Experts Group) Using sophisticated compression techniques, this format can be 1/10 the size of normal ‘raw data’ files. Please do not compress your jpeg. Keep it at the ‘Highest Quality’ (Illustrator =10, Photoshop = 12) If you have any questions regarding your files, feel free to give us a call. Just ask for the Graphics Department. Source.